Duplicating-machine



' v MM/M 9.3

H. COHN.

DUPLICATING MACHINE. APPLICATION FILED mm. 20. 1919. I 1,342,530. m PatentedJnne 8, 1920.

2 suuzws-smen 1 IN VE IV TOR WITNESSES ATTORNEYS H. COHN.

DUPLICATING MACHINE.

APPLICATION FILED MAR. 20, 1919- 1 342,530. Patented J QS, 1920:

' A TTORNEVS UNITED STATES Parent orifice;

. HARRY 001111; or ALBANY, new YORK. I

"DUPL'ICATING-MACHINE. 7

specification of Letters a Patented-Jnne'8, 1920.

Application'filedj March 20, 1919. Serial no. 283,863;

To all whom it may concern:

Be it knownthat I, HARRY CoHN, a citizen of the United States, and a resident of Albany, in the county of Albany and State of New York, have invented a new and Improved Duplicating-Machine, of which the following is a full, clear, and exact descrip-- tion.

The invention relates to duplicating machines ofthe rotary printing-drum type, and its object is to provide a new and improved duplicating machine arranged to permit of printing at each revolution of the printing drum the heading and the body of a letter,

circular or other similar instrument with the heading appearing printed by inked type or inked electrotypeandthe body appearing printed in imitation of typewritten work by the use of an-inked 'IlblOOIl extending over the printing face of thebody set up in typewriter type.

With these and other objects in view, the

invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims. u

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specificatiomin which similar characters of reference lndicate corresponding parts in all the views.

Figure 1 is a side elevation of the duplicating machine; V

Fig. 2 is a front'elevation of the same;

Fig.8 isacross section of the same on-the line 3-3 of Fig. 2;

Fig. 4 is a perspective view of seg-.

ment detached from the printing "drum;

Figs. 5 and 6 are face views of the sec tions of the cam controlling the inking rollers for the heading.

The duplicating machine is mounted on a rotates with it. The drum 12 is arranged Another object is to 1 llow of the varying the height of the heading of the instrument.

for supporting a printing segment 20' provided withholding means 21 for holding set-up type or an 'electrotype constituting a heading 22 for printing the heading of a letter, circular or similar instrument. The

face of the heading 22 is inked at'every revolution of the drum 12 by inking rollers '24 and 25 journaled in levers 26 and 27 on the frame 10 and provided withla frictionroller 28 traveling on the peripheral face of a cam 29 rotating with the printing drum 12.

Friction roller 28 has an extensionsha'ft 28 on which lever 27 rests and lever'271is connectedby a spring 30 which holdslever 27 against extension shaft 28 and friction roller '28 in engagement with "the; cam 29.

The rubber inking rollers 24'and 25 are in contact with steel oscillating rollers'4O and -41. Roller 41 receives asupply o'fi'nk from a rubber ductor roller'43 which travels back and forth between steel "fountain roller-44 and steel roller 41. "Between the rollers 40 and 41 is a rubber idler roller 42which just touches the steel rol'lers40 and '41 and "com pletes the distribution"function o'f thefive forward rollers,'24, 25, 40, 41 and42. Foun-' tain roller (steel) 44 operates against adjustable fountain 45-which 'feeds a filmof ink to fountain roller 44 and said film of ink is picked up by'du'ctor roller 43 andcarried to steel rollers 41. Levers 26 and 27 have expansions at their upper ends and are milled out to '-fit around inner sides ofeccentric shaft knobsof rollers24 and 25. Tightening screws run throughthe -two expansions that extend beyond the knobs. The

proper contact is first given to: form rollers 24 and 25 against the type orelectrotypegby the adjustment of'eccen'tric sha ts of rollers 24 and 25 and then'th'e screws li-n nds of expansions of levers 26 and 27 are tightened against the knobs of the shafts of rollers 24 and 25. During each revolution of the printing drum 12. a swinging movement is given to levers 26 and 27 in order to'throw rollers 24 and 25 in contact with type face heading 22. When high portion of cam 29 operates against friction roller 28 inking rollers 24 and 25 are thrown away from heading 22.

In, order to permlt of holding the inking rollers 24 and 25 in contact with heading 22 of different height, the cam 29 is made in two sections 45 and 46 having projecting portions 47 and 48 forengagement by the friction roller 28 to move the inking rollers 24; and 25 in contact with the face of the heading 22. The cam sections 45 and 16 are adjustably fastened together by a bolt 49 engaging elongated slots 50 and 51 in the cam sections 45 and 46. By the arrangement described the aggregate length of the projections 47 and 4L8 can be varied to hold the inking rollers 24: and 25 in inking contact with the face of the heading'22 according to the height of the latter.

The segment is further provided with holding means 60 for holding a body printing means 61 in the form of set-up type'or electrotype, Over the body printing means is stretched an inking ribbon 62 which passes through slots 63 and 6 1 formed in the segment 20 on the upper and lower ends of the body printing means. The inking ribbon 62 passes aroundguide rods 65, 66 and 67, 68

to wind at their ends on spools 69 and 7 0 journaled in the drum 12 and provided with the usual pawl and ratchet mechanisms for holding the inking ribbon stretched in place over the face of the body printing means 61 and to allow of changing such ribbon in the usual manner.

The operation is as follows:

A sheet of paper is fed between the printing drum 12 and its platen 14:, and the drum and platen are rotated by an operator turning the handle 13 or by an electric drive.

It will be noticed that two impressions are made on the sheet, one by the heading 22 inked by the inking rollers 2 1 and 25 and one by the body printing means 61 through the medium of the inking ribbon 62. Thus the heading producedon the sheet is printers printing while the body-appears in imitation of typewritten work. It is expressly understood that each sheet is printed with a heading in printers printing and a body in imitation of typewritten work on each revolution of the printing drum 12;

The duplicating machine may be used only for ink printing by dispensing with the inking ribbon, or only for printing in imitation of typewritten work by dispens- V in with the cam and inking rollers.

- aving thus described my invention, I

'member provided with means carrying separate printing means, one for the heading and one for the body of the instrument to be prlnted, the said rotary member having slots one above and one below the said body 1 printing means, a platen co-acting with the said rotary member, an inking ribbon extending through the said slots and over the printing face of the said body printing means, spools journaled in the drum and on which wind the ends of the said inking ribbon, inking rollers adapted to engage the face of the said heading printing means, le-v vers to which said inking rollers are adjustably eccentrically pivoted, and a cam on the drum and controlling the said levers,

the said cam being in adjustable sections to vary the movement of the lever according to the height of the said heading printing means. 7

2. In a duplicating machine, a rotary member provided with means carrying sepa I rate printing means, one for the heading and one for the body of the instrument ,to, be printed, the said rotary member having slots one above and one below the said body printing means, a platen co-acting with the said rotary member, an inking ribbon extending through the said slots and over the printing face of the said body printing means, spools j'ournaled in the drum and-on which wind the ends of the said inking ribbon, inking rollers adapted: to engage the face of the said printing means, levers to which said inking rollers are adjustably eccentrically pivoted, a roller at'the opposite end of one of said levers, and engaged by the other of said levers, a cam on the drum engaging said lastnamed'roller-to control said levers, thesaid cam being in adjustable sections to Vary the movement of the levers according tothe height of the said heading printing means, r

3 HARRY (JOHN. Witness: .7 V r LEE 0. Kno'rrs. 

